Sabrent 2TB Rocket Q4 NVMe PCIe 4.0 SSD Review

ATTO & CrystalDiskMark

ATTO v4.01.0f1

ATTO is one of the oldest drive benchmarks still being used today and is still very relevant in the SSD world. ATTO measures transfers across a specific volume length. It measures raw transfer rates for both reads and writes and places the data into graphs that can be very easily interpreted. The test was run with the default runs of 0.5KB through 64MB transfer sizes with the total length being 256MB.

ATTO Disk Benchmark:

Benchmark Results: On ATTO Disk Benchmark found that the Sabrent Rocket Q4 2TB NVMe SSD topped out at 3.29 GB/s write and 5.26 GB/s read at the standard queue depth of 4. The write performance dipped down below 250 MB/s twice on this benchmark run and when we ran it several more times the dips were still present at different I/O sizes. It seems like the compression algorithm used by the Phison controller is throwing off these benchmark results just a bit.

CrystalDiskMark 7.0.0 x64

CrystalDiskMark is a small benchmark utility for drives and enables rapid measurement of sequential and random read/write speeds. Note that CDM only supports Native Command Queuing (NCQ) with a queue depth of 32 (as noted) and shows the highest score of five runs.

CystalDiskMark:

Peak Performance Preset

Real Performance Preset

Benchmark Results: The Sabrent Rocket Q4 2TB drive came in with scores of 4,984.07 MB/s read and 3,504.91 MB/s write on CrystalDiskMark 7. According to Sabrent, this drive is rated at up to 4,800 MB/s read and 3,600 MB/s write, so we are very close to the expected sequential speeds.

Let’s look at some other benchmarks!